Choose 1 of the following questions to answer by day 3 (Wednesday) and include 2 references. Your post should be at least 250 words. Please remember to answer to 2 of your classmates' discussions (on 2 separate days) by Saturday.  The reply to your classmates should be at least 100 words each.  The references (in APA format) are not included in the word count! Discussion Question (DQ) 1 Describe the components and functions of the juxtaglomerular (JG) apparatus. What activates it and explain the cascade of reaction that happens after its activation. Discussion Question (DQ) 2 Name the four processes involved in urine formation, and describe what happens during each.